JPH0222025A - Electric injection apparatus of injection molding machine - Google Patents
Electric injection apparatus of injection molding machineInfo
- Publication number
- JPH0222025A JPH0222025A JP17189088A JP17189088A JPH0222025A JP H0222025 A JPH0222025 A JP H0222025A JP 17189088 A JP17189088 A JP 17189088A JP 17189088 A JP17189088 A JP 17189088A JP H0222025 A JPH0222025 A JP H0222025A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- injection
- motor
- shaft
- pressure plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 37
- 239000007924 injection Substances 0.000 title claims abstract description 37
- 238000001746 injection moulding Methods 0.000 title claims description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 8
- 230000004043 responsiveness Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
- B29C2045/5032—Drive means therefor using means for detecting injection or back pressures
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は射出成形機の電動射出装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an electric injection device for an injection molding machine.
（従来の技術）
従来、射出成形機の射出装置として、全油圧式及び油圧
・電動共用式のものが知られているが、近年、電動機の
みによる射出装置か出現している。(Prior Art) Conventionally, full hydraulic type and hydraulic/electric combination type injection molding machines have been known as injection devices for injection molding machines, but in recent years, injection devices using only electric motors have appeared.
この種の電動射出装置として、従来、特開昭６１２３７
６１５号公報及び特開昭６１−１２５８２３号公報に開
示されたものがある。Conventionally, as this type of electric injection device, Japanese Patent Application Laid-Open No. 61237
Some of them are disclosed in Japanese Patent Application Laid-open No. 615 and Japanese Patent Application Laid-open No. 125823/1983.
（発明が解決しようとする問題点）
ところで、特開昭６１−２３７６１５号公報に記載のも
のは、複数のモータを用いて射出駆動系の慣性力を小さ
くして、射出駆動系の精度を高くしている。(Problems to be Solved by the Invention) By the way, the method described in Japanese Unexamined Patent Publication No. 61-237615 uses a plurality of motors to reduce the inertia of the injection drive system, thereby increasing the accuracy of the injection drive system. are doing.
しかしなから、ネジ軸とモータとが同一の軸心上に直列
的に接続配置されているため、電動射出装置の全長が長
くなり、ひいては射出成形機自体か長くなってしまうと
いう問題点かある。However, since the screw shaft and the motor are connected in series on the same axis, there is a problem that the overall length of the electric injection device becomes longer, and the injection molding machine itself becomes longer. .
一方、特開昭６１−１２５８２３号公報に記載のものは
、１個のモータで射出駆動系を構成しているから、電動
射出装置の全長を短くすることかできるが、１個のモー
タで射出駆動系を構成しなければならないから射出駆動
系の構造が複雑としなってしまい、コスト高になるとい
う問題点かある。On the other hand, in the device described in Japanese Patent Application Laid-open No. 61-125823, the injection drive system is composed of one motor, so the overall length of the electric injection device can be shortened. Since the drive system has to be constructed, the structure of the injection drive system becomes complicated, resulting in a problem of high cost.
本発明の目的はスクリューの加減速時の応答性にすぐれ
た電動射出装置を提供することにある。An object of the present invention is to provide an electric injection device with excellent responsiveness during acceleration and deceleration of a screw.
本発明の他の目的はコンパクト（全長の短い）で、構造
の簡単な電動射出装置を提供することにある。Another object of the present invention is to provide an electric injection device that is compact (short overall length) and has a simple structure.
（問題点を解決するための手段）
本発明による電動射出装置は、加熱シリンダ内に配置し
たスクリューを回転するためのスクリュー回転用モータ
とスクリューと同一の軸芯上に位置するように摺動可能
なプレッシャプレートに回転可能に軸支した軸体とを伝
達機構を介して連結し、かつ前記プレッシャプレー１へ
のスクリューの反対側に連結したプレート部材に前記ス
クリューと同一の軸芯上に位置するようにナラ１へ部材
を固定すると共に、該ナツト部材と螺合し、かつ定位置
で回転可能なネジ軸体を伝達機構を介して射出用モータ
に連結したことを特徴としている。(Means for Solving the Problems) The electric injection device according to the present invention is capable of sliding so as to be positioned on the same axis as the screw rotation motor and the screw arranged in the heating cylinder. A shaft body rotatably supported by a pressure plate is connected via a transmission mechanism, and a plate member connected to the opposite side of the screw to the pressure plate 1 is located on the same axis as the screw. The present invention is characterized in that a member is fixed to the nut member 1 as shown in FIG.
（実施例） 以下本発明について実施例により説明する。(Example) The present invention will be explained below with reference to Examples.
まず、第１図及び第２図を参照して、射出成形機のフレ
ーム３５には所定の間隔をおいて支持ヨーク１，１′が
固定されており、この支持ヨーク１．１′には複数のカ
イト棒２及び２′がその両端で固定されている。そして
、射出装置全体が前プレート３及び後プレート４を介し
て前記カイト棒２及び２′に案内支持されて、図示しな
い型締装置に対して進退可能となっている。また前プレ
ー１へ３及び後プレート４はカイト棒５及び５′により
互いに連結されている。この前プレー１−３には水冷シ
リンダーフがポルト１０により固定されており、該シリ
ンダーフにはナツト８によって加熱シリンダー９が固定
されている。前記水冷シリンダー９にはホッパー１１が
装着され、該ホッパー１１から樹脂材料が加熱シリンダ
ー９に供給される。また加熱シリンダー９内にはスクリ
ュー６が回転可能にしかも軸方向に摺動可能に配設され
ている。First, referring to FIGS. 1 and 2, support yokes 1 and 1' are fixed to a frame 35 of an injection molding machine at a predetermined interval, and a plurality of support yokes 1 and 1' are fixed to the frame 35 of the injection molding machine. kite rods 2 and 2' are fixed at both ends thereof. The entire injection device is guided and supported by the kite rods 2 and 2' via the front plate 3 and rear plate 4, and is movable toward and away from the mold clamping device (not shown). The front plate 1 to 3 and the rear plate 4 are also connected to each other by kite rods 5 and 5'. A water-cooled cylinder head is fixed to the front plate 1-3 by a port 10, and a heating cylinder 9 is fixed to the cylinder head by a nut 8. A hopper 11 is attached to the water-cooled cylinder 9, and resin material is supplied from the hopper 11 to the heating cylinder 9. Further, a screw 6 is disposed within the heating cylinder 9 so as to be rotatable and slidable in the axial direction.
前記後プレート４の一面く左端面）には射出用モーター
２が固定されており、その出力軸（回転軸）は後プレー
ト４を貫通して該プレート４の他面（右端面）から突出
している。そしてこのモータ１２の出力軸にはプーリ１
３が取り付けられている。また、後プレート４には前記
スクリュー６と同一の軸心上に位置するように、ネジ軸
１４がベアリング１７を介して回転可能に軸支されてい
る４このネジ軸１４の一端（右端部）にはキー１６によ
ってプーリ１５が固定されており、該プーリ１５はベル
ト２１を介して前記プーリ１３に連結されている。この
ように、射出用モーター２の出力軸とネジ軸１４とは略
平行の関係に配置されている。そして、前記ネジ軸１４
の他端（左端部）にはナツト１８が螺合、されている。An injection motor 2 is fixed to one surface (left end surface) of the rear plate 4, and its output shaft (rotation shaft) passes through the rear plate 4 and projects from the other surface (right end surface) of the plate 4. There is. A pulley 1 is attached to the output shaft of this motor 12.
3 is installed. Further, a screw shaft 14 is rotatably supported on the rear plate 4 through a bearing 17 so as to be located on the same axis as the screw 6. 4One end (right end portion) of the screw shaft 14 A pulley 15 is fixed to by a key 16, and the pulley 15 is connected to the pulley 13 via a belt 21. In this way, the output shaft of the injection motor 2 and the screw shaft 14 are arranged in a substantially parallel relationship. Then, the screw shaft 14
A nut 18 is screwed into the other end (left end).
このナツト１８はプレー１〜３２に固定されており、該
プレート３２は前記カイト棒５及び５′に軸方向に移動
可能に案内されている。This nut 18 is fixed to the plates 1 to 32, which plates 32 are axially movably guided on the kite rods 5 and 5'.
前記スクリュー６とネジ軸１４との間にはこれらと同一
軸線上に位置するように軸体２４か配置されており、か
つこの軸体２４はベアリング２５及び２６を介してプレ
ッシャープレート１つに回転可能で、軸方向の移動を拘
束するように支持されている。そして、このプレッシャ
ープレート１つは前記カイト棒５及び５′に軸方向に移
動可能に案内されている。また、プレッシャーグレート
１９と前記プレート３２とは互に連結され、この連結部
にロードセル２０が配置されている。即ち、このロード
セル２０はその両端のフランジ部３３及び３４をそれぞ
れプレッシャープレート１９及びプレート３２に固定さ
れている。A shaft body 24 is arranged between the screw 6 and the screw shaft 14 so as to be located on the same axis as these, and this shaft body 24 is rotated by one pressure plate via bearings 25 and 26. supported to restrict axial movement. This pressure plate is axially movably guided by the kite rods 5 and 5'. Further, the pressure grate 19 and the plate 32 are connected to each other, and a load cell 20 is disposed at this connection portion. That is, the load cell 20 has flanges 33 and 34 at both ends fixed to the pressure plate 19 and plate 32, respectively.
プレッシャープレート１９にはスクリュー回転用モータ
２２か固定されており、このモータ２２の出力軸はネジ
軸１４と略平行に前記前プレート３側に突出している。A screw rotation motor 22 is fixed to the pressure plate 19, and the output shaft of this motor 22 projects toward the front plate 3 side substantially parallel to the screw shaft 14.
このモータ２２の出力軸にはプーリ２３が取り付けられ
、かつこのプーリ２３は前記軸体２４に取り付けられた
プーリ２７とベルトによって連結されている。また軸体
２４のスクリュ−６側端部には、スプライン穴３０か穿
設されており、かつこのスプライン穴３０にスクリュー
６の端部に設けられたスプライン軸２つを嵌入すると共
に、スプライン軸２つはスプリ・ントフランジ２８によ
って抜止めされ、軸体２４の回転がスクリュー６に伝達
される。A pulley 23 is attached to the output shaft of this motor 22, and this pulley 23 is connected to a pulley 27 attached to the shaft body 24 by a belt. Further, a spline hole 30 is bored in the end of the shaft body 24 on the screw 6 side, and two spline shafts provided at the end of the screw 6 are fitted into the spline hole 30, and the spline shaft The two are prevented from coming off by a splint flange 28, and the rotation of the shaft body 24 is transmitted to the screw 6.
一方、軸体２４の前記ネジ軸１４側端面には、ネジ軸１
４の径よりやや大きい六３６か穿設されており、ネジ軸
１４の回転により、該軸１４に沿ってナラ１−１８が移
動する時、ネジ軸１４の端部か出入するようになってい
る。On the other hand, the screw shaft 1
4 is bored, and when the screw shaft 14 rotates and the nuts 1-18 move along the shaft 14, the end of the screw shaft 14 moves in and out. There is.
次に上述の電動射出装置の動作について説明する。Next, the operation of the above-mentioned electric injection device will be explained.
スクリュー回転用モータ２２を駆動すると、プーリ２３
．ベルト３１及びプーリ２７を介して軸体２４が回転さ
れ、この回転かスクリュー６に伝えられる。このスクリ
ュー６の回転によってホッパー１１から加熱シリンダー
９内に樹脂材料が供給され、加熱シリンダー９内で溶融
され、混練されながら加熱シリンダー９の先端部分に送
られて貯えられる。この時、溶融樹脂の樹脂圧によりス
クリュー６は後方（図示右方向）に押される。スクリュ
ー６を押圧する力（押圧力）は軸体２４及び軸受２５を
介してプレッシャープレート１９に伝達され、さらにプ
レッシャープレート１９からロードセル２０に伝達され
る。この結果、ロードセル２０は軸方向の力（押圧力）
を検出する。When the screw rotation motor 22 is driven, the pulley 23
．． The shaft body 24 is rotated via the belt 31 and the pulley 27, and this rotation is transmitted to the screw 6. As the screw 6 rotates, the resin material is supplied from the hopper 11 into the heating cylinder 9, where it is melted, kneaded, and sent to the tip of the heating cylinder 9 for storage. At this time, the screw 6 is pushed backward (to the right in the figure) by the resin pressure of the molten resin. The force (pressing force) that presses the screw 6 is transmitted to the pressure plate 19 via the shaft body 24 and the bearing 25, and further transmitted from the pressure plate 19 to the load cell 20. As a result, the load cell 20 exerts an axial force (pressing force)
Detect.
このロードセル２０の検出値を制御装置（図示せず）に
入力して、スクリュー６の押圧力か予め定められた設定
値となるように射出用モータ１２を制御する。即ち、射
出用モータ１２を制御して、ネジ軸１４を回転させ、ナ
ツト１８を軸方向へ移動（後退）させて、スクリュー６
の押圧力（背圧）を設定値に維持するように制御する。The detected value of the load cell 20 is input to a control device (not shown), and the injection motor 12 is controlled so that the pressing force of the screw 6 becomes a predetermined set value. That is, the injection motor 12 is controlled to rotate the screw shaft 14, move the nut 18 in the axial direction (backward), and the screw 6
control to maintain the pressing force (back pressure) at the set value.
このようにして、スクリュー６の背圧を設定値に維持し
つつ計量を行い、スクリュー６か計量完了位置に達する
と、この位置を検出器（図示せず）により検知してスク
リュー回転用モータ２２の回転を停止し、計量行程が終
了する。In this way, metering is performed while maintaining the back pressure of the screw 6 at the set value, and when the screw 6 reaches the metering completion position, this position is detected by a detector (not shown) and the screw rotation motor 22 stops rotating, and the metering process ends.
次に、スクリュー回転用モータ２２を停止さぜな状態で
、射出用モータ１２を射出方向に回転させると、プーリ
１３．ベルト２１．及びプーリ１５を介してネジ軸１４
か回転し、ナラ１〜１８か前進する。ナツト１８の前進
はプレート３２．ロードセル２０．プレッシャープレー
ト１つ、及び軸体２４を介してスクリュー６に伝えられ
、スクリュー６が前進する。そして溶融樹脂か金型内に
射出される。Next, when the injection motor 12 is rotated in the injection direction while the screw rotation motor 22 is stopped, the pulley 13. Belt 21. and the screw shaft 14 via the pulley 15.
Rotate and move forward 1 to 18 times. The forward movement of the nut 18 is caused by the movement of the plate 32. Load cell 20. It is transmitted to the screw 6 via one pressure plate and the shaft body 24, and the screw 6 moves forward. The molten resin is then injected into the mold.
この際、ロードセル２０にはナツト１８にかかる軸方向
の力が作用する。即ち、スクリュー６にかかる射出圧力
がロードセル２０に作用するから、この射出圧力をロー
ドセル２０によって検知し、制御装置に検知値を入力し
て、スクリュー６による射出圧力が予め定めた設定値と
なるように制御する。At this time, an axial force applied to the nut 18 acts on the load cell 20. That is, since the injection pressure applied to the screw 6 acts on the load cell 20, this injection pressure is detected by the load cell 20, and the detected value is input to the control device so that the injection pressure by the screw 6 becomes a predetermined set value. to control.
（発明の効果）
以上説明したように本発明では、ネジ軸を短くしてネジ
軸側における回転数を低くすることで、慣性力を小さく
することができ、射出駆動系の応答性を高くすることが
できる。(Effects of the Invention) As explained above, in the present invention, by shortening the screw shaft and lowering the rotation speed on the screw shaft side, the inertial force can be reduced and the responsiveness of the injection drive system can be increased. be able to.
さらに、ネジ軸とモータとか平行（並列）に配置されて
いるから、射出装置の全長を短くすることかでき、また
１ｆｆＪ造を簡単にすることかできる。Furthermore, since the screw shaft and the motor are arranged in parallel, the overall length of the injection device can be shortened, and the 1ffJ construction can be simplified.
第１図は本発明の一実施例を示す正面図、第２図は本発
明の一実施例の要部を示す断面図である。
１．１′・・・支持ヨーク、２．２′・・・カイト棒、
３・・・前プレート、４・・・後プレート、５．５′・
・・ガイド棒、６・・・スクリュー、７・・・水冷シリ
ンダ、９・・・加熱シリンダー １１・・・ホッパー
１２・・・射出用モータ、１３・・・プーリ、１４・・
・ネジ軸、１５・・・プーリ、１７・・・ベアリング、
１８・・・ナツト、１つ・・プレッシャープレート、２
０・・・ロードセル、２１・・・ベルト、２２・・・ス
クリュー回転用モータ、２３・・・プーリ、２４・・・
軸体、２５．２６・・・ベアリンク、３２
・・プレート。FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing essential parts of the embodiment of the present invention. 1.1'...support yoke, 2.2'...kite rod,
3...front plate, 4...rear plate, 5.5'・
...Guide rod, 6...Screw, 7...Water cooling cylinder, 9...Heating cylinder 11...Hopper
12... Injection motor, 13... Pulley, 14...
・Screw shaft, 15...Pulley, 17...Bearing,
18...Natsuto, 1...Pressure plate, 2
0... Load cell, 21... Belt, 22... Screw rotation motor, 23... Pulley, 24...
Shaft, 25.26 Bear link, 32 Plate.
Claims (1)
めのスクリュー回転用モータとスクリューと同一の軸芯
上に位置するように摺動可能なプレッシャプレートに回
転可能に軸支した軸体とを伝達機構を介して連結し、か
つ前記プレッシャプレートのスクリューの反対側に連結
したプレート部材に前記スクリューと同一の軸芯上に位
置するようにナット部材を固定すると共に、該ナット部
材と螺合し、かつ定位置で回転可能なネジ軸体を伝達機
構を介して射出用モータに連結したことを特徴とする射
出成形機の電動射出装置。 ２）プレッシャプレートとプレート部材との連結部にロ
ードセルを介装したことを特徴とする特許請求の範囲第
１項に記載の射出成形機の電動射出装置。 ３）スクリュー回転用モータ及び射出用モータをスクリ
ュー軸と略平行に配置したことを特徴とする射出成形機
の電動射出装置。[Scope of Claims] 1) A screw rotation motor for rotating a screw disposed in a heating cylinder and a pressure plate rotatably supported so as to be slidable so as to be located on the same axis as the screw. A nut member is fixed to a plate member connected to the shaft body via a transmission mechanism and connected to the opposite side of the screw of the pressure plate so as to be located on the same axis as the screw, and the nut member 1. An electric injection device for an injection molding machine, characterized in that a screw shaft body that is screwed together and rotatable in a fixed position is connected to an injection motor via a transmission mechanism. 2) The electric injection device for an injection molding machine according to claim 1, characterized in that a load cell is interposed in the connecting portion between the pressure plate and the plate member. 3) An electric injection device for an injection molding machine, characterized in that a screw rotation motor and an injection motor are arranged substantially parallel to the screw axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171890A JP2628071B2 (en) | 1988-07-12 | 1988-07-12 | Electric injection device of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171890A JP2628071B2 (en) | 1988-07-12 | 1988-07-12 | Electric injection device of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222025A true JPH0222025A (en) | 1990-01-24 |
| JP2628071B2 JP2628071B2 (en) | 1997-07-09 |
Family
ID=15931702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63171890A Expired - Fee Related JP2628071B2 (en) | 1988-07-12 | 1988-07-12 | Electric injection device of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2628071B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH035119A (en) * | 1989-06-02 | 1991-01-10 | Canon Inc | Motor-driven injection device |
| JPH035120A (en) * | 1989-06-02 | 1991-01-10 | Canon Inc | Regulating method of back pressure of motor-driven injection device |
| JPH035121A (en) * | 1989-06-02 | 1991-01-10 | Canon Inc | Motor-driven injection device |
| US5639491A (en) * | 1995-08-15 | 1997-06-17 | Hwa Chin Machinery Factory Co., Ltd. | Arrangement of oil cylinders for a plastic injecting machine |
| EP0861148A4 (en) * | 1995-11-17 | 1999-05-06 | Cincinnati Milacron Inc | Drive apparatus for an injection unit |
| EP0967064A1 (en) * | 1998-06-26 | 1999-12-29 | Sumitomo Heavy Industries, Ltd. | Injection apparatus |
| EP1741538A1 (en) * | 2005-06-28 | 2007-01-10 | Fanuc Ltd | Injection unit of injection molding machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0216023A (en) * | 1988-07-05 | 1990-01-19 | Fanuc Ltd | Injection molding machine |
-
1988
- 1988-07-12 JP JP63171890A patent/JP2628071B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0216023A (en) * | 1988-07-05 | 1990-01-19 | Fanuc Ltd | Injection molding machine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH035119A (en) * | 1989-06-02 | 1991-01-10 | Canon Inc | Motor-driven injection device |
| JPH035120A (en) * | 1989-06-02 | 1991-01-10 | Canon Inc | Regulating method of back pressure of motor-driven injection device |
| JPH035121A (en) * | 1989-06-02 | 1991-01-10 | Canon Inc | Motor-driven injection device |
| US5639491A (en) * | 1995-08-15 | 1997-06-17 | Hwa Chin Machinery Factory Co., Ltd. | Arrangement of oil cylinders for a plastic injecting machine |
| EP0861148A4 (en) * | 1995-11-17 | 1999-05-06 | Cincinnati Milacron Inc | Drive apparatus for an injection unit |
| EP0967064A1 (en) * | 1998-06-26 | 1999-12-29 | Sumitomo Heavy Industries, Ltd. | Injection apparatus |
| US6364650B1 (en) | 1998-06-26 | 2002-04-02 | Sumitomo Heavy Industries, Ltd. | Injection apparatus with load detection between support members |
| EP1741538A1 (en) * | 2005-06-28 | 2007-01-10 | Fanuc Ltd | Injection unit of injection molding machine |
| US7404709B2 (en) | 2005-06-28 | 2008-07-29 | Fanuc Ltd | Injection unit of injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2628071B2 (en) | 1997-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |